Year	Percent change
1980	12.231
1981	11.046
1982	6.101
1983	4
1984	3.966
1985	4.624
1986	5.414
1987	5.994
1988	4.051
1989	5.405
1990	4.628
1991	7.304
1992	5.577
1993	2.748
1994	1.367
1995	2.023
1996	1.262
1997	0.561
1998	1.207
1999	1.119
2000	1.732
2001	2.362
2002	1.498
2003	3.656
2004	1.16
2005	1.819
2006	1.958
2007	2.407
2008	4.434
2009	1.666
2010	1.621
2011	3.064
2012	1.912
2013	0.444
2014	1.184
2015	1.879
2016	-0.347
2017	1.402
2018	2.249
2019	2.615
2020	2.38
2021	2.283
2022	2.222
2023	2.196
2024	2.158